The following table provides summary statistics for permanent job vacancies with a requirement for JNI skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JNI over the 3 months to 28 March 2017 with a comparison to the same period in the previous 2 years.

Java Native Interface (JNI)
UK
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 856 938 967
Rank change year-on-year +82 +29  
Permanent jobs citing JNI 2 16 11
As % of all permanent IT jobs advertised in the UK 0.002% 0.015% 0.010%
As % of the Libraries, Frameworks & Software Standards category 0.006% 0.040% 0.027%
Number of salaries quoted 1 16 10
Median salary £32,500 £80,000 £36,000
Median salary % change year-on-year -59.37% +122.22%  
UK excluding London median salary £32,500 £43,000 £36,000
% change year-on-year -24.41% +19.44%  

JNI is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
UK
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 34276 39857 40737
As % of all permanent IT job vacancies advertised in the UK 40.22% 38.33% 37.70%
Number of salaries quoted 29253 34347 34594
Median salary £45,000 £45,000 £44,500
Median salary % change year-on-year - +1.12%  
90% offered a salary of more than £31,500 £30,500 £30,000
10% offered a salary of more than £70,000 £65,000 £67,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

JNI
Job Vacancy Trend

The job posting trend of jobs advertised citing JNI as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for JNI in the UK

JNI
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JNI.

Salary trend for JNI in the UK

JNI
Top 2 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JNI within the UK over the 3 months to 28 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Scotland +26 2 £32,500 -35.00%
Dundee - 2 £32,500 -

For the 6 months to 28 March 2017, IT jobs citing JNI also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for JNI.

1 6 (100.00%) Java
2 5 (83.33%) Objective-C
3 4 (66.67%) C#
4 3 (50.00%) C++
4 3 (50.00%) Time Management
4 3 (50.00%) Android
5 2 (33.33%) Reverse Engineering
5 2 (33.33%) .NET
5 2 (33.33%) J2EE
5 2 (33.33%) Penetration Testing
5 2 (33.33%) Degree
5 2 (33.33%) Mobile Development
5 2 (33.33%) Software Delivery
5 2 (33.33%) Threat Modelling
5 2 (33.33%) Computer Science
5 2 (33.33%) Games
6 1 (16.67%) Multithreading
6 1 (16.67%) Identity Access Management
6 1 (16.67%) Mathematics
6 1 (16.67%) Mobile Games
6 1 (16.67%) EJB
6 1 (16.67%) Linux
6 1 (16.67%) OO
6 1 (16.67%) OpenGL
6 1 (16.67%) SQL
6 1 (16.67%) Scala
6 1 (16.67%) 3D Programming
6 1 (16.67%) NoSQL
6 1 (16.67%) Apple iOS
6 1 (16.67%) Hudson

JNI
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Database & Business Intelligence
1 1 (16.67%) Big Data
1 1 (16.67%) NoSQL
Development Applications
1 1 (16.67%) Android Studio
1 1 (16.67%) Gradle
1 1 (16.67%) Hudson
1 1 (16.67%) Jenkins
General
1 2 (33.33%) Games
Job Titles
1 2 (33.33%) Games Programmer
1 2 (33.33%) Penetration Tester
1 2 (33.33%) Programmer
1 2 (33.33%) Tester
2 1 (16.67%) Android Developer
2 1 (16.67%) Developer
2 1 (16.67%) iOS Android Developer
2 1 (16.67%) iOS Developer
2 1 (16.67%) Java Team Leader
2 1 (16.67%) Senior Games Programmer
2 1 (16.67%) Senior Programmer
2 1 (16.67%) Team Leader
Libraries, Frameworks & Software Standards
1 2 (33.33%) .NET
1 2 (33.33%) J2EE
2 1 (16.67%) Android NDK
2 1 (16.67%) Android SDK
2 1 (16.67%) EJB
2 1 (16.67%) iOS SDK
2 1 (16.67%) OpenGL
Miscellaneous
1 2 (33.33%) Computer Science
2 1 (16.67%) Mobile Games
Operating Systems
1 3 (50.00%) Android
2 1 (16.67%) Apple iOS
2 1 (16.67%) Linux
Processes & Methodologies
1 3 (50.00%) Time Management
2 2 (33.33%) Mobile Development
2 2 (33.33%) Penetration Testing
2 2 (33.33%) Reverse Engineering
2 2 (33.33%) Software Delivery
2 2 (33.33%) Threat Modelling
3 1 (16.67%) 3D Programming
3 1 (16.67%) Android Development
3 1 (16.67%) Game Development
3 1 (16.67%) Identity Access Management
3 1 (16.67%) iOS Development
3 1 (16.67%) Mathematics
3 1 (16.67%) Multithreading
3 1 (16.67%) OO
Programming Languages
1 6 (100.00%) Java
2 5 (83.33%) Objective-C
3 4 (66.67%) C#
4 3 (50.00%) C++
5 1 (16.67%) Scala
5 1 (16.67%) SQL
Qualifications
1 2 (33.33%) Degree
City, London
Client Server
Salary: £90k to £120k + bonus (100%+) + benefits
Posted: 10 hours ago
London
Client Server
Salary: £90000 - £120000 per annum + bonus (100%+) + benefits
Posted: 23 hours ago
City, London
Miller Maxwell Ltd
Salary: Up to £120,000 per annum + Bonus + Benefits
Posted: Yesterday
City, London
Client Server
Salary: £90k to £120k + bonus (100%+) + benefits
Posted: 6 days ago
London
Client Server
Salary: £90k to £120k + bonus (100%+) + benefits
Posted: 6 days ago